Smart carton insert



FIG. 1 is an in use view of the smart carton insert of the present invention;

FIG. 2 is a top plan view; and

FIG. 3 is a front plan view, and

FIG. 4 is a side plan view, and

FIG. 5 is a rear plan view; and,

FIG. 6 is a bottom plan view.

The broken line showing is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a smart carton insert, substantially as shown and described. 